#mask-no-color {
    z-index: 20;
    position: fixed;
    background-color: transparent;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    display: none;
}
#mask-color-black,
#mask-color-dark-gray,
#mask-color-gray,
#mask-color-light-gray,
#mask-color-opacity-black{
    z-index: 30;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    display: none;
}
#mask-color-black {
    background-color: black;
}
#mask-color-dark-gray {
    background-color: darkgray;
}
#mask-color-gray {
    background-color: gray;
}
#mask-color-light-gray {
    background-color: lightgray;
}
#mask-color-opacity-black {
    background-color: rgba(0, 0, 0, 0.5);
}
#pop-scene {
    z-index: 50;
    text-align: center;
    width: 100%;
    position: absolute;
}